Sensor for Detecting Arcing Faults
First Claim
Patent Images
1. :
- A pressure sensor comprising;
a pressure-activated switch,a filter connected to said pressure-activated switch,a microcontroller connected to said filter,a differential transceiver connected to said microcontroller and providing communication signals outside of said pressure sensor.
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Abstract
The present invention is directed to a sensor for detecting arcing faults, the sensor combining a photodetector, a pressure detector, and an accelerometer along with integrated circuitry. The circuitry controls each detector, operates the self-test circuitry, conditions the signals from the detectors, and communicates with the external network. The circuitry receives commands from the network and transmits the output decision from the sensor.
23 Citations
17 Claims
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1. :
- A pressure sensor comprising;
a pressure-activated switch, a filter connected to said pressure-activated switch, a microcontroller connected to said filter, a differential transceiver connected to said microcontroller and providing communication signals outside of said pressure sensor. - View Dependent Claims (2, 3, 4)
- A pressure sensor comprising;
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5. :
- A pressure sensor comprising;
a pressure-activated strain gauge, a difference amplifier connected to said pressure-activated strain gauge, a filter connected to said differential amplifier, an analog-to-digital converter connected to said filter, a microcontroller having an input and at least two outputs, connected at said microcontroller input to said analog-to-digital converter, connected at one output to said pressure-activated strain gauge, and providing signals to the outside of said pressure sensor; a pressure pump connected to said microcontroller. - View Dependent Claims (6, 7, 8)
- A pressure sensor comprising;
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9. A sensor module for detecting arcing faults, said sensor module comprising:
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a photodetector, a pressure detector, an accelerometer, processing circuitry connected to each of said photodetector, said pressure detector and said accelerometer, and wherein said photodetector, said pressure detector, said accelerometer and said processing circuitry are mounted to a single substrate. - View Dependent Claims (10, 11, 12, 13)
wherein each of said photodetection circuitry threshold comparator, said accelerometer processing circuitry analog-to-digital converter, and said pressure detection processing circuitry analog-to-digital converter are connected to a microcontroller.
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11. The sensor module of claim 10, wherein said microcontroller is a DSP.
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12. The sensor module of claim 10, wherein said microcontroller is a FPGA.
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13. The sensor module of claim 10, wherein said microcontroller is a ASIC.
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14. A sensor for detecting arcing faults, said sensor comprising:
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a plurality of photodetectors, a plurality of pressure detectors, a plurality of accelerometers, processing circuitry connected to each of said photodetector, said pressure detector and said accelerometer. - View Dependent Claims (15, 16, 17)
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Specification